*{margin: 0;padding: 0;font-size: 20PX}
ul{list-style: none;width: 100px}
ul li a{display: block;border-bottom: 1px solid #CCC; text-decoration: none;background: #00b7f0;text-align: center;color: #fff}
ul li a:hover{background: #f60;color: #ccc;text-decoration: underline}